Vehicle-spring



M. L. RIGGS.

VEHICLE SPRING.

APPLICATION FILED JAN.2I, 1919.

1, 0 942: Patented Aug. 24, 1920.

3 SHEETSSHEET l.

Suva ntoz MLiZz'yys.

m myam M. L. RIGGS.

VEHICLE SPRING.

APPLICATION FILED J'AN.2I, 1919.

1,350,942, Patented Aug. 24, 1920.

a w w M M M. L. RIGGS.

VEHICLE SPRING.

APPLICATION FILED JAN.2I, 1919.

Patented Aug. 24,1920.

3 SHEETSSHEET 3.

Snow wot witnesses UNITED .STATES. PATENT OFFICE. I

MARION L. RIGGS, F BERTHA, MINNESOTA.

VEHICLE-SPRING.

T0 all whom it may concern.-

Be it known that I, MARION L. 'BIGGS, a

citizen of the United States, residing at I Bertha, in'the county of Todd and State of Minnesota, have invented new and useful Improvements in vehicle springs, of which the following is a specification.

This invention relates to a novel constructionof shock absorber for automobiles and ment, said abutments having restrictedv passages therein, with means for adjusting the size of the passage in the stationary abutment and a sliding valve for controlling the passage in the other abutment. V The invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described,-

illustrated in the accompanying drawings and specifically pointed out in the appended claims.

In describing my invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which Figure 1 is a plan view of the device. Fig. 2 is a side view thereo Fig. 3 is a longitudinal section through the cylinder and associated parts.

F Fig. 4 is a cross section on line 44 of ig. 1. Fig. 5 is a view of one of the locking rings.

Fig. 6 is a view of one of the cover plates. Fig. 7 is an end view with the arm and its nut removed.

As shown in these views,- the invention consists of an arm 1 which is adapted to be connected with the axle and an arm 2 adapted to be connected with the body of the car,

Specification of Letters Patent.

Patented Au 24., 1920.

Application filed January 21, 1919. Serial No. 272,299.

said arms being connected togetherby the fluid container 3. The arm 1 is formed with '55 a semi-circular recess 4 and flanges 5 and a cap 6of.semi-circular form, and provided with the flanges 7 for clamping said arm to' the axle housing or the axle itself. The cap is held in place on the arm by the bolts 8 passing through'the flanges. The'arm '2 is provlded with alarge fork 9 at one end and a small fork 10 at itsother end, which 1s adapted to receive the link 11, the link being adjustably connected to said arm by 5 means of the bolt 12 and the holes 13. The upper end of the link is secured to the bot tom of the body of the automobile by means of the clamp 14. The arm 2 is formed of two parts clamped together by the bolts 15.

The arm 1 is formed integral with the cylinder 16 of the fluid container, and a shaft 17 passes through said cylinder and is connected with the large fork 9 of the arm 2.

The shaft carries an abutment 18, which forms a pistonin the cylinder, and a stationary abutment 19 is secured to the inner walls of the cylinder by the bolts 20. These .abutments extend longitudinally and are provided centrallywvith the ports 21 and 22. S The ends ofthe cylinder are closed and the parts held in proper position by means of a pair of locking rings 23, one of these rings being located in each end of the cylinder,

said cylinder and rings being screw-threaded, as shown. The rings abut against the abntments and have their inner circumferencesengaging the shaft. A groove 24: is formed in the outer f ce of each ring to receive the packing material 25. Cover plates 26 are provided with the outer flanges 27, which have their .inner faces screw-threaded to'engage the screw-threads on the Outer circumference of the ends of the cylinders.

The cover platesare also provided with the small inner flanges 28, which project into the grooves 24 and compress the packing 25. The shaft is provided with a small reduced portion 29 to receive the openings formed in the ends of the large fork 9 and said arms are removably held in place by means of the caps '30 which engage the screwthreaded ends of the shaft. I place washers 31 between the cover plates and the ends of the fork. The shaft is provided with a'cen-- tral opening 32 of varying sizes. The larg- 60 I that the working parts are extremely simple is pushed inwardly.

est part'of which forms a recess 33 of rectangular shape, which is extended through theabutment 18 and communicates with the port 21. A sliding valve 33 engages with thi'srecess. This valvehas .a stem 3 1 which is adapted to engage with the central part of the opening 32 whenjthe valve 'A coil spring 35 is located in said central part of the opening and engages 'with said stem. .The small part 36 of the opening communicates with the tain positions of the parts.

port 22 in the stationary abutment in ceris provided with an inclined part 37 on one side of its end while its other side is straight.

The extreme end ofthevalve is rounded. to

engage the walls of the cylinder. The abut ment: is provided with an extenslon 38 at one side thereof which is adapted-to engage and close the'port 21 in the rotary abuts ment'in a. certain position of the parts. The cylinder is filled by means zt hreaded'plug 39, which passes through the upper p 25 the same diameter as the-width of the port art of the cylinder and has its end extending into the port, 22. This end 18 of and acts as an adjuster means for adjusting the size of said port. Theupper end of the lu is screw-threaded and receives a cover 40. a The plug is held in adjusted position by the locknut 41.

It will thus be seen that when the axle and the body move toward each other the rotary abutment will be moved toward the left or toward the extension38 of the sta-v tionary abutment. The fluid-will flow in an opposite directionthrough 'the'ports 21 and 1 22, the valve 33 moving inwardly due to the i pressure on'the inclined face 37. The exten-.

.sion 38 will engage'the p0rt21 if the move- I prefer to place the'clamp 14 at a point quite a distance in advance of the rear axle I and to clamp the arm 1 to the housing of said rear axle. Thus the device will absorb a certain part of the jar administered to the front springs, so that it is necessary to use but two of the absorbers. It will be seen and automatic in their operation, thus requiring the minimum amount of care and attention. All working parts operate in oil,

The valve 33 tionary abutment therein, cylinder,

and due to the locking rings and cover plates the deviceis dustproof, thereby doing away with the necessity of frequent oiling and there is no danger of sand and dust getting into the bearingsfAll the adjustments are made from the exterior so that it is not necessaryto take thedevice apart. As before stated, the extension on the stationary abutment engaging with the port in the rotary abutment permits the device to assume a part of the load'when the spring is being taxed to its utmost in thedown-ward movement of the parts.

. It is thought from the foregoing descrip tion that the advantages and novel features of my invention will be readily apparent. A I desire it to. beun'derstood that I may Imake changes in the construction and in the 'combmat on'and arrangement of the several parts, provided such changes fall within the .scope of theclaims.- f .afscrew- I H What I 'claimlis 1 A device of the class described, comprising a cyllnder containing a fluid, a staan abutmentcarried thereby, said abutments in, a .valve controlling the passage 1n the shaft. abutment, 'a screw-threaded filling plug carried by. the

an adjusting means for the passage in the stationary abutment and arms connected with the shaft and cylinder.

a shaft in said cylinder and acting as having restricted passages thcre- 2. A device ofthe. class described, comprisinga' cylinder-r containing a fluid, a stationary abutmenttherein, an"e xtension on said stationary. abutment, ashaft in said cylinder, an abutment carried thereby, said abutments having restricted passages therein, the passage in the shaft abutment engaging with theextension to limit the move-' ments of 'the parts, a valve controlling the passage in the shaft abutment and having one gage with the extension, means for adjusting the size of the passage in the stationary abutment and'armscon'nected with the shaft and cylinder.

of its edges inclined and adapted to en- 3. A device of the class described com- '1 prising a cylinder containing a fluid, a stationary abutment therein, a shaft in. said cylinder, anabut'ment-carried thereby, said abutments having restricted passagestherein and the shaft :and its abutmenthaving a transverse opening therein, a springv con- .trolled slidevalve in the casing for. controlling the passage in the abutment, means for adjusting the-size of the passage in the stationary abutment and ,arms connected with the shaft and cylinder. I 4:. A device of the class described comprisinga cylinder, closing rings at the ends thereof, a shaft passing through said cylin-' der and rings, an abutment carried .by the cylinder, an abutment carried by the shaft, said abutments having restricted passages therein, a valve controlling the passage of the shaft abutment, each end ring having an annular groove in its inner periphery, a

packmg in said groove engaging the shaft, cover plates having screw threaded engage;

ment with the ends of the cylinder and having inner flanges for engaging the pao'king, an arm connected Withthe ends of the shaft 10 and an arm connected with the cylinder.

\ In testimony whereof I affix my signature.

MARION L. RIGGS. v 

